Yes, "all" is not correct. Although a good majority of them, pretty much, sat there and harped on Cohen's crimes, which he has already admitted to and is going to prison for, as a reason he can't be trusted. Cohen gain's nothing by lying. In fact, he gains nothing by telling the truth either. But, the fucker is heading to the slammer. He could pull the Russian hooker tape out of his coat and project onto Jim Jordan's forehead and he's still going to prison. On the other hand, if he lies, he goes to prison AND stays longer.
This seems to be all the Republicans have!?
Everybody who works for Trump protects Mr. Trump. Presumably to the best of their ability. Which means if the someone puts its boot on your neck, you grovel and say whatever it takes to make yourself more credible, so you can live to defend Trump another day. This guy went to work for Trump, and decided every day for 10 years that working for Trump was a great idea, brilliant career move, and the best use of his time as a lawyer. The only reason we know about Cohen right now is because he got caught. I'm sure that there is exactly 0% chance, had he never been caught, Mr. Cohen would have had a spontaneous moment of clarity one morning and said to himself, "Hey, what hell am I doing?" , this shit is a crime", "this Trump guy is shady" - and legitimized his practice and actions. He's a viper. Best use for him is to squeeze the last venom from his fangs, and throw him into the same hole his coconspirators end up in.